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The synthesis and characterisation of highly stable and reproducible selenium nanoparticles

2017; Taylor & Francis; Volume: 47; Issue: 11 Linguagem: Inglês

10.1080/24701556.2017.1357611

2470-1564

Sheeana Gangadoo, Dragana Stanley, Robert Hughes, Robert J. Moore, James Chapman,

Nanoparticles: synthesis and applications

This paper describes a simple and reproducible solution phase synthesis approach for selenium nanoparticles by reducing selenium tetrachloride in the presence of ascorbic acid. An optimization study with poly (sodium 4-styrenesulfonate) produced stable and spherical narrowly size distributed nanoparticles (46 nm) which are considered highly monodisperse. The presence of selenium nanoparticles was confirmed by UV-visible spectroscopy for surface plasmon resonance (262 nm), elemental dispersive spectroscopy (11 KeV and 12.5 KeV) and size ranges characterized by dynamic light scattering (PDI = 0.04, size range of optimized nanoparticles = 35 nm to 75 nm), and visualized using scanning and transmission electron microscopy.